If white light is used in YDSE then

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bright white fringe is formed at the center of screen

fringe closest to either side of center of the screen is red

fringe closest to either side of center of the screen is violet

after few fringes no clear fringe pattern is seen

answer is B, A, D.

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Detailed Solution

For all colours, $△ x = 0$ at the center of the screen. So, all colours will have maxima leading to white bringe.
If we go away from center of the screen, the first colour that satisfies minima condition is violet. So fringe appears reddish as violet componentis missing.

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